The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 22, 2016
Filed:
Jun. 30, 2016
Applicant:
Captioncall, Llc, Salt Lake City, UT (US);
Inventors:
Brian Chevrier, Highland, UT (US);
Michael S. Stimpson, Taylorsville, UT (US);
Assignee:
CAPTIONCALL, LLC, Salt Lake City, UT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04M 1/00 (2006.01); H04M 1/82 (2006.01); H04M 3/22 (2006.01); H04M 3/30 (2006.01);
U.S. Cl.
CPC ...
H04M 1/82 (2013.01); H04M 3/2272 (2013.01); H04M 3/301 (2013.01);
Abstract
A method to detect dial tone on a telephone line may include taking samples of incoming audio on a telephone line. The method may also include determining volumes of the samples. The method may further include determining whether the volumes of a threshold number of the samples are at or above a threshold volume. The method may also include, in response to determining that the volumes of a threshold number of the samples are at or above a threshold volume, determining that the incoming audio on the telephone line includes a dial tone.